Wall-light.



H. WIDSTHAND.

WALL LIGHT.

APPLICATLON FILED SEPT. 29. 19'17.

L?. Patented Lug. 20, wm.

3 SHEETS-SHEET l.

Illllll H. WIDSTRAND.

WALL LIGHT.

APPLICATION man sEPT.29.1917.

l gpl? Eateuted Aug. 20, 1918.

3 SHEETS-SHEET 2.

H. WIDSTRAND.

WALL LIGHT,

APPLICATLON FILED SEPT.29.1917.

Patented Aug. 20, 1918.,

3 SHEETS-SHEET 3.

@Mum/woz V brushes.

HERBERT WIDSTRAND, F CHICAGO, ILLINOIS.

WALL-LIGHT.

Specification of Letters Patent.

'Patented aug. 2o, reis.

Application led September 29, 1917. Serial No. 194,045.

To NZZ 107mm 'it may Concern Be it known that I, HERBERT VVIDSTRAYD,

Improvements in Tall-Lights, of which ther following is a specification.

This invention relates to new and useful improvements in vacuum supports for electric lights. andthe principal object of the invention is to provide a supporting bell having a vacuum cup thereon with electric means for creating a vacuuinin said cup.

Another object of the invention is to provide a magnet for actuating means for withdrawing air from the cup with means for automatically energizing and denergizing the same when the current is switched on.

A further object of the invention is to form the device of a few number of parts held together within the bell shaped support by a single strip which is secured within the support by a pair of nuts engaging with the screw threaded socket which receives the electric light bulb.

Another object of the invention is to provide a device of this character which is simple and durable in construction, reliable and efficient in operation and one which can be manufactured and placed upon the market at a minimum cost.

The invention also consists in certain other features of construction and in the combination and arrangement of the several parts.y to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claims. f

In describing my invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views` and in which z- Figure 1 is an elevationof the device located on the wall.

Fig. 2 is a longitudinal sectional view.

Fig. 3 is a like view but taken at right angles to Fig. 2.

lil'ig. 4 is a section on line 4-4 ot' Fig.

Fig. is a sect-ion on line 5 5 of `Fig.

Fig. t3 is a section on line 6-6 of Fig.

Figs. 7 and 8 are details of the spring contacts.

Figs.

i), and 11 are details ot the In these figures 1 indicates the support made of substantially bell shape and having an opening in its upper end which is to receive the screw threaded end of the elec- .tric light socket 2, said bell being secured the nuts 3. A strip 4 has itsv thereto by upper portion made to iit snugly the'upper part of the bell and is held in place against the interior wall of said bell by means of the nuts 3, said strip having an opening therein for receiving the screw threaded end of the socket. This strip has its lower end spaced from the lower part of the bell and said lower end has portions bent at right angles and provided with screw threaded openings to receive a pair of screws 5 which hold a plate 6 to said end, said plate pass/nig transversely across the lower end of/tlle/bell and partly closing the same. "'7'iridicates a rubber bulb having its edges projecting beyond the lower part of the bell and having its upper part engaging the bottom of the plate 6, and 8 indicates a second rubber bulb located within the bell having its bottom provided with an annular liange 9 which is seated on the upper face of the plate 6. A pair of plates 10 and 11 located within the said bulbs secure the same to the plate 6 by means of a screw 12 passing through said plates into a soft metal core 13 of a magnet 14. By means of the screw 12 the two plates 10 and 11 grip the edges of the' bulb between themselves and the plate 6 and the core 13 is also held in position on the plate 11. The magnet is composed oa tube 15 having its lower ends screw threaded and receiving a hanged nut 16 which secures the upper part ot' the bulb 8 betweenitself and the lower plate 17 ofthe magnet. 18 indicates the upper plate of the magnet, it being understood that the'tube 15 with the plates 17 and 18 form a spool to receive the wire with which the magnet is wound. A coil spring 19 located within the bulb 8 and surrounding the core 13 tends to hold the magnet in its upper position with the core 13 projecting therefrom. Said core is provided with a slot 20 which forms a passage between the interior of the bulb 8 and the tube 15 and the upper part of said tube is closed by a valve 21 pivoted to the plate 18 as at 22. The bulb 8 communicates with the bulb 7 through suitable openings formed in the plates 10 and 11, the opening in plate 10 being normally closed by an upwardly opening valve 23 secured to the plate lO. The plate l? ot the magnet has a projecting portion on which is secured a. rubber bloclr 2i and said block carries apair ot brushes 25. rlhese brushes are made or spring metal and are adapted to spring in two directions They are each provided With a block 26 at their tree ends which is ot less Width than the ends oi' the brushes so as to provide a flange 27 on each brush. The brushes are secured to the blocks by suitable screws and they are provided with a nipple 28 ivhich engages the side ot the block to prevent turning movement of the brushes on the screws. An insulated bloclr 29 is carried by the strip Ll by engaging suitable lugs formed on said strip, and said bloclr is located adjacent the magnet.. Said bloclr is -formed with. notches in its ends into which engage the bent over ends oit metal strip 30. 'livo orp these strips are located on the block and each ot said strips has secured thereto a spring Contact 3l. rlhese contacts are secured to the outer edge o-t'each strip tor a certain distance and they then converge es at 32 until they come close to each other Where they are bent and carried parallel with each other tor a short distance Where they diif'erge and are then bent and have their ends parallel as at 33. The lower ends orp said contacts 3l end at the point B and a strip il has its loner end bent to engage a notch formed in the lower end or the bloclr'QQ and its other end is bent upwardly at an incline and then downwardly and enters an opening formed in the bloeit 2Q. Said strip t is located between the straps 30 and the end ot the inclined part is located directly above the parallel parts 32 oit the contacts. The ends or the contacts 3l are provided with extensions 3l which are secured to a rubber bloclr 83 secured to the upper end or the strip l. .El second block Bel is secured to said strip l opposite the block 33 and this bloclr Bil carries spring contacts 35. lhe electric Wires -36 leading to the lamp socket are secured to these spring contacts 35. The inner ends or the contacts 35 are provided with converging portions ending in semi-circular portions 36 and trom here said strips diverge and have their extreme ends parallel as at 3'?. Said parallel parts 37 lie between the ends ot the contacts 33. A push hey 38 composed ot a jointed rod having an enlargement 39 mid-Way ot its ends passes through openings in the blocks 33 and Sel and between the pairs ot contacts 3i and B5 and has each end projecting beyond the bell. The contacts 35 are normally heldout ot engagement with the contacts 3l and when it is desired to create a vacuum in the bulb l so as to secure the support to a wall the rod 3S is pushed toward lett so as to torce the enlargement 39 into the semi-circular portions et the contacts nis ivill torce said contacts apart and thi/orf their ends into engagement with the con- 33 until thev et to the point B Where. due to A the spring action they Will spring together and engage the strip if. is soon as the brushes leave the contacts the current is broken and the magnet is forced upwardly by the spring i9. the rod fl and anges 2?' ivill engage the upper tace ot said strip and as said tlanges strilre .the inclined part the brushes will be lifted up above the plane of the contacts 3l. @n further upward movement of the mag net, said brushes Will pass ed the end ot' the strip el and will thus drop downwardly into engagement with the parallel parts 32y ot the Contact. Thus the magnet is again connected with the electric current and it will take its dovvnivard movement. lthus the magnet will continue to move up and down as long as the push button is in its lett hand position. @n the upward movement ot the magnet a if'acuum is created in the bulb 8 so that the valve 33 is raised and the air exhausted roin the bulb 7. 'lhus a Vacuum is created in said body so that the saine will hold the support to a Wall. ln a rough Wall there is lilrely to be a leakage between bulb 7 and the Wall. .lt this is the case bulb 8 with the magnet will slowly rise as the air lealrs into bulb 7. there is no leakage bulb 8 will remain almost stationary. fis magnet and bulb 8 reach the top and before starting on their downward stroke Valve 23 will close thus retaining the vacuum in bulb i' and holding the base to the Wall until bulb 8 is again on its upward stroke.

lt is thought from the foregoing descrip tion that the advantages and novel 'features ot my invention will be readily apparent.

l desire it to be understood that l may malte slight changes in the construction and in the combination and arrangement ot the several parts7 provided that such changes tall Within the scope or tte appended claims.

llfhat l claim. is 1'- l. l support for electric liffhts comprising a casing, a Tvacuum bulb at the end thereo", and magnetic means for exhausting the air troni said bulb.

2. A support 'for electric lights comprising a casing. a vacuum bulb at the end thereof, magnetic means for exhausting the air The brushes ivill pass up l.

from said bulb, and automatic means for alternately energizing and denergizing said magnet.

3. A support tor electric lights comprising a casing, a vacuum bulb at the end thereot', a second bulb in comn'iunication therewith, a magnet haring sliding movement on its core' to depress said second bulb, brushes connected with said magnet, Acontacts on which said brushes have sliding movement, said contacts ending at a point above the end of movement of said brushes so that said brushes will leave the contacts, a spring for returning the magnet to normal position, and .means for throwing the brushes into engagement `with the contacts when said magnet reaches its normal position.

4. i support for electric lights comprising a casing of substantially bell shape, an electric light socket carried at the upper end of said casing, a vacuum bulb carried at the lower end of said casing, magnetic means for exhausting the air from said bulb, means for automatically energizing and denergizing said magnetic means, and switching means for diverting partof the current to .said magnetic means.

A support tor electric lights comprising a casing ot substantially bell shape, a

strip ot loop form having its upper end of substantially the same shape as the Casing, an electric light socket carried by the casing, means for securing the Casing and the strip to said socket, a vacuum bulb connected with the lower partof the strip, and means for creating a vvacuum in said bulb carried by the strip within the easing.

6. Asupport for electric lights comprising a casing, a Vacuum bulb at the end thereof, a second bulb in communication therewith, a stationary Core within said second bulb and having its upper end projecting therefrom, a magnet engaging said projecting end, means for securing the magnet to the upper end ot' the second bulb, a spring surrounding the core for holding the magnet in raised position, means permitting the passage of air from the second bulb through the magnet, a valve controlling said means, Contact meanst'or energizing the magnet to cause its core to attract it to compress the second bulb. said Contact means being broken at the end of the movement of the magnet but being formed again by the upward movement of the magnet caused by the spring` and switch means for controlling the current.

In testimony whereof I atlix my signature.

HERBERT WIDSTRAND. 

